Edge binder



Nov. 26, 1929.

H. B. HOUSTON 1,737,243

EDGE BINDER Original Filed April 20, 1925 60 Mil/MW Gil Patented Nov. 26, i929 .sars-" EENRY B. HOUSTON, OF NEW YORK, N. Y.

EDGE BINDER Application filed April 20, 1925, Serial No. 24,710. Renewed November 9, 19.28.

My invention relates to an improved edge binder, more particularly to an edge binder for flotation screens, and for sieves, screens, and the like, for use in milling flour and wherever else found desirable.

The objects of my invention are the provision of a binding which will take the strain off the screen, give the screen, sieve, or the like, tension, and which will take up any irregularities therein, such. as caused by vibration, and keep the screen drawn taut at all times, also a binder by means of which the screen may be fastened in place without breaking. or weakening the edge of the screen itself and the provisionof a binder which is resilient and durable, and which can be manufactured at a reasonable cost and easily distributed and applied.

The invention is illustrated in the accompanying drawings, in which:

Figure 1 is a view in perspective of a section of the binderwith the attaching and separating strips in place and before folding the sheet over;

Fig. 2 is a similar View showing the binder completed for distribution and use;

Fig. 3 shows the first step of applying the binder to the screen, sieve, or the like;

Fig. i is a view in perspective of a section of: the binder as applied to the screen, sieve, or the like; and

Fig. 5 is an elevational view in perspective showing a screen or sieve with the binder attached along all edges thereof.

Referring to the drawings, the binder shown comprises-a sheet 5 which is preferably of rubber, although rubber fabric or any other suitable material having the de sired properties may be employed. lWherc the sheet 5 is of rubber, it is preferably cured or semi-cured, so that the surface 6 which forms the outer surface of the binder will not be sticky or adhesive.

The opposite surface 7 of the sheet 5 is treated with rubber cement, or uncured rubber, A strip 8 of fabric, such as thread fabric, or any other preferred or suitable attaching strip which will take the strain off the screen and strengthen or reenforce the attaching other suit his nil te or otherwise made sticky or adhesive.

edges ojt'the screen. 16 asshown, for example,

margin of-the binder islaid onv the adhesive surface 7 of the sheet 5 with one edge along substantially the median line longitudinally of the sheet 5. The strip 8 may also be previously treated to assure firm and complete cohesion between it and. the surface 7 of the sheet 5.

A seoarating strip 9, for preventing cohesion between the edges of the sheet 5 when the sheet is folded over, is laid onthe surface 7 longitudinally along one edge of the sheet 5, and the sheet 5 its longitudinal median. line l'Obacln upon the opposite surfaces of the strips 8 and 9'. The two halves of the sheet 5 are then pressed together, being united or bound firmly together by the cohesion therebe-tween. at 12, and cohering firmly tothe attaching strip 8. The strip 9 may be of Holland, glazed cloth or fabric, or any other suitable material which will lay properlybetween the free edges 1% of the sheet 5, and which will perunit ready separation of the edges. 1 f from it and ready removal of the strip 9 from between said edges.-

The binder is now finishedand ready for distributien and use, and may be sold or distributed in rolls, continuous strips, or strips cut to suitable lengths.

T will now describe the application of the binder to a screen, sieve, orthe like, which may be of wire mesh, bolting cloth, or. any

rial: One of the edges 1d of the sheet 5 is lifted f cm the strip. 9' and the edges ofthe screen OT'SlG-VS 1 61s lard between the strip 9- and the raisededge L l. .The surface .7 of the raiser edge M5 is gasoh-ned, cemented, or otherwise treated, to make it, adhere firmly to the edge of the screen to, and the raised edge 1a is then. laid back and pressed-firmly upon the inserted edge of thesheet ;lt3,- assh-own in 3. This causes firm adhesion of the uncured, cei cntcd, or: otherwise treated surface 7'. to the edge ofthe screen 16';

' vi "here the binder is attached to all four in Fig. 5, this is done around all four edges.

The screen-16 with binderthus partially secured thereto is then turned over and the is then folded over along other edge 14 is lifted up, the strip 9 removed, and the surface 7 of this raised edge gasolined,cemented,or treatedlike the other edge, and then laid back on the edge of the screen and the other edge 14, and pressed down, causing adhesion of the surfaces 7 of the edges 14. which may be pressed through the meshes of the screen 16. In finishing the corners may be finished at an angle, as indicated at 20 in Fig. 5, so that there will be no unfinished edges on the outside or, if desired, the corners may simply be finished square by making two sides longer than the other two and laying the shorter twobetween the longer two. The shape and contour of the screen or sieve will, of course, vary and the particular manner of finishing the corners and arranging the binder upon the screen may vary accordingly.

In use the screen is attached over the open ing or secured in place by inserting the nails or other fastening elements, indicated at 21 in Fig. 1, through the reenforced, folded margin of the binder, and into the adjacent support 22. The resiliency of the rubber sheet 5 permits tensioning the screen in securing it in place. It also takes up any 11'- regularitles 1n the screen sucn as are caused i by vibration or loads thereon, or by the rack and twist in the machine, and it keeps the screen taut at all times. The fastening de vices 21 pass through the strip 8 which imparts the desired strength along the attaching margin and breaking or weakening of the edge of the screen 16 is avoided. The binder, which I have provided, takes the strain oil the screen and keeps a continual tension on the screen.

For treating the inner surfaces 7 of the marginal edges 14 I find that a solution of 1% chloride of sulphur and 99% benzol will assure proper cohesion and will give a vapor cure, especially where hot material is used. This is, therefore, another feature of the present invention.

I claim:

1. As an article of manufacture, a binder comprising a sheet of rubber having an adhesir e surface and folded with one side upon the other, and with the adhesive surfaces of the opposite sides presented inwardly, a reinforcing fabric strip of greater strength than the rubber sheet secured between the sides of the rubber sheet along the fold and of a width and strength to receive fastening elements and to take the stress off the rubber sheet adjacent said fastening elements, and a removable separating strip extending between the opposite edges of the sides of the rubber sheet, the adhesive inner surfaces of the opposite sides of the sheet being secured directly together between the fabric reinforcing strip and said removable separating strip.

2. As an article of manufacture, a binder comprising a resilient sheet folded with one side upon the other, a reinforcing strip of a material different and of greater strength than said resilient sheet secured between the sides of said resilient sheet along the fold and of a width and strength to receive fastening elements and to take the stress oil the resilient sheet adjacent said fastening elements, and a removable separating strip extending between the opposite edges of the sides of the resilient sheet, the inner surfaces of the opposite sides of said sheet being secured directly together between the reinforcing strip and said removable separating strip.

3. As an article of manufacture, a binder comprisinga sheet of rubber having an adhesive surface and folded with one side upon the other and with the adhesive surfaces of the opposite sides presented inwardly, and a reinforcing fabric strip of greater strength hen the rubber sheet secured between the sides of the rubber sheet along the fold and of a width and strength to receive fastening elements and to take the stress off the rubber sheet adjacent said fastening elements.

4e. As an article of manufacture, a binder comprising a resilient sheet folded with one side upon the other, and a reinforcing strip of a material different and of greater strength than said resilient sheet secured between the sides of the resilient sheet along the fold and of a width and strength to receive fastening elements and to take the stress off the resilient sheet adjacent said fastening elements.

5.' As an article of manufacture, a binder comprising a sheet of resilient material having an adhesive surface and folded with one side upon the other and with the adhesive inner surfaces of the sides of the sheet secured directly together, and a removable separating strip extending between the free marginal edges of the sides of the resilient sheet opposite the fold for preventing cohesion between said edges and removable to permit insertion of the element to be bound between said edges.

In witness whereof, I hereunto subscribe my name this 14th day of April, 1925.

HENRY B. HOUSTON. 

